Armature-assembling apparatus



March 6, 1928.

L. E. POOLE ARMATUREI ASSEMBLING APPARATUS 2 Sheets-Sheet 1 Filed June 28, 1926 March 6, 1928. 1,661,344 L. E. POOLE ARMAIURE ASSEMBLING APPARATUS Filed June 28, 1926 2 Sheets-Sheet 2 Juan f 01',

' shown in Patented 6, 1928.

tihllTED STATES PATENT OFFICE.

-EZ'JSl-"E ASSIGNMENTS, TO

DELCO-REMY CORPORATION, OF DAYTON, OHIO, A CORPORATION OF DELAWARE.

ARMATURE-ASSEMBLING APPARATUS.

Application filed June 28, 1926. Serial No. 118,875.

This invention relates to apparatus for assembling a mature and dynamo-electric machines, and particularly for assembling hair-pin bar conductors upon a slotted core.

It is among the objects of this invention to provide certain improvements in this type of apparatus which will facilitate the assembling operation and therefore reduce the cost of this part of manufacturing of the dynamo-electrie machines.

Further objects and advantages of the present invention will be apparent from the following description, reference being had to the accompanying drawings, wherein a preferred forn'i of embodiment of the present invention is clearly shown.

in the drawings:

Figs. 1 and 2 are longitudinal sectional views the armature holding apparatus, Fig. 1 showing theends of the hair-pin conductors introduced into the slots of the armature core, and Fig. 2 showing the armature conductors in final position;

Fig. 8 is a plan view of: the armature core Fig. 1;

Fig. l s a plan view of the core holder shown in n igs. 1 and 2;

Fig. 5 is a trout elevation of an armature assembling machine including the workholder shown in Figs. 1 and 2, the work holder, the armature core, and work-holder support being shown in sect-ion; and

Fig. 6 is a side view, partly in section, oi the machine shown in Fig. 5.

Referring to the drawings, 20 designates the base supported by legs 21. The base 20 supports a frame 22 carrying a cylinder 23 within which a piston 24 is slidable. Piston 24: is connected with a vertically movable rod 25 provided with a groove 26 in the sides thereoitor receiving an armature shaft 27. The shaft- 27 is assembled with a laminated slotted core 28 having slots 29 which are lined with Sshapcd core lining members 30 providing channels 31 and 32 adapted respectively to receive the outer branches 33 and the inner branches 3% of the hair pin bar conductors Nhile but two of these bar conductors 35 are shown in all figures of the drawing except Fig. 4, it will be understood that each slot 29 receives the branches of two different bar conductors. It is apparent that each slot lining member 30 includes two loops joined by an intermediate portion 30. The upper end of the core 28, as viewed in Figs. 1 and 2, is insulated by a non-conducting disk of slightly greater diameter than the metal disl: of the core. The disk 36 is provided with closed slots 37 through which the lining members 30 ernend. The lower end of the core 28 is insulated by a non-conducting disk 38 or" slightly smaller diameter than the metal plates of the core and is provided with slots spaced similarly to and located in radial alinenient with the core slots. The lining members 30 extend also through the disk 38. The work holder or armature support is a cup-shaped member, designated in its entirety by numeral e0, which includes an outer tubular member ll with the thin-walled tubular member 42 and a cylindrical member 43. These members are press-fitted together so as to form a cup member having an end wall provided by the cylinder member 43 for supporting the armature core. The tubular member ll is provided on its interior with a plurality of equi-angularly-spaced, longitudinally extending ribs 4a which define grooves 45 for receiving the outer branches 33 of the hair-pin conductors. T iese i'ibs i l extend from the bottom of the member il to the elevation of the surface 46 upon which the core 28 rests. The member 41 is provided interiorly with a plurality of equi-angularly-spaced, longitudinally extending ribs at? which are located in alinement with the grooves 45, and extend above the surface 46. Each rib 47 is adapted to enter a core slot 29 when the core is inserted with the cup member 40. These ribs 47 serve to prevent lateral movement of the lin ing members 30 and also aline the slots of the core with the conductor-receiving apertures of the cup'members.

he conductonreceiving apertures provided by the cup members for receiving the lid my eena 1a inner branches 3% of the hair-pin conductors 85 are provided by grooves 50 which are defined by equiangularly-spaced, longitudinally extending ribs 51 extending from the v '1! V V t periphery oi the inner member 43. lhe angular spacing of the ribs 51 corresponds with the angular spacing of the ribs a l, and the member 13 is located with respectto the member a1 so that the ribs 51 and a l are in radial alinement. As shown in Figs. 1 and 2 the ribs 51 extend below the surface 16. The intermedia-te member 12 is a section-oi thin-walled metal tubing which is presstitted between the members ll. and a3, and which provides means for partitioning the grooves and 50 so that the outer row of conductor bar branches 3%. will be separated from the innerrow of branches 3 1. The in terincdiate member-d2 also provides means for preventing cndwise movement of slot linmembers 30, while the conductors 35 are being moved endwise relative to the core. lit willybe noted that the upper edge of member 42. is located vertically below the intermediate portions 3O of -slot lining members and therefore provides an obstruction to the vertical downward movement of these members. The upper edges of ribs bland 51 are beveled at and 51 respectively in order to facilitate theentrance ot the hair-pin conductor branches into the grooves a5 and 50.

The inner member of the work holder.

lO is provided with a central aperture 5"? for receiving the shaft 2?, the lower end of which extends below the extension 58 of member d3. The extension 58 is provided with an aperture transverse the aperture 57 for receiving a pin 59 which is press-fitted into position and is provided with an apen ture in alinement with the aperture 5?. to permit the shaft- 27 to extend through the pin 59. The ends oi the pin 59 which project sidewise from the extension of member 43 provide trunnions tor the work holder which is pivotally supported by the base 20, it will. be noted that the axis of the pin 59 is at right angles with, and intersects the of the work holder 40 and rod 25.

The work holder or cup member. 4:0 is moved to the dotted line position 40 shown in Fig. 6 when loading or unloading the work. Before the armaturecore and shaft assembly is inserted in the cup member to the required number ofhair-pin conductors are introduced'into or nested in the core slot as indicated in 1. An apertured disk 70 is placed around the shatt 27, the yoke portion 35 of the conductors being received by annular groove 71 provided in the dish 70'. Then this assemblage of the shaft, core, bar conductor and disk '50 is placed in cup member when in the positiondt), the lower end of the core resting upon the surface. 16. Then the cup member 10 is tilted into full line position shown in 5 by pushing against the shaft 27 until the shaft engages the bottom of groove 26 of the rod 25. Then a pressure fluid is admitted to the cylinder 23 above the piston 24 in any well known manner, thereby causing the rod 25 to move downwardly into engagement with the disk 70 in order to move said dish and the conductor from the position shown in Figs 1 and 5 to the position shown in Figs, 2 and 6. During the movement of the conductors relative to. the core the outer branches ot' the conductor will be recei e by the grooves or apertures 15 and the inner branches d lwillibc received by the grooves or apertures which have been provided by cup member d0, as previously explained. hiince the conductor branches fit snugly withinthe channels 31 and provided by the slotmember 80. these members tend to move downwardly with the conductor branches. Due to'the obstruction prox idedby the intermediate ring member 12 endwise movement of the slot lining members 30 is prevented.

After disassembling operation has been performed, a: pressure fluid is admitted to the lower end. of the cylinder23 below the tit;

piston 24: while the pressurefiuid above the piston is vented. The rod 25 will be moved upwardly to the. 1 3ositionshown in Fig. 5. Then the operator may, grasp the shaft 27 and move the cup member a0 and parts held thereby into the dotted line position indicatedby numerals 27 28% anddO in Fig. 6'. The assembled work may then be removed and'work to be assembled inserted within the cup member 4:0.

in order to dislodge the. armature assemblage from the work holder, in case itshould not come out readily by pulling'shait 2?} there is provided a work ejector which comprises a rod located below the base 20 and obliqueto the rod 25. The rod 80 is movable through the base into engagement with the lowerend of the shaft 27. The rod 80 is connected with the piston :81 movable in'a cylinder 82 attached by braclretBi-l to the base 20. A pressurefluidmay beadmitted' to the cyl1nder'82 below the piston 81 through a pipe 8st ,inorder to move the rod 80 upwardly. A" springbfi maybe used to restore the piston 81 to the position-shown after the admission of pressure tluidfceases and the space between the piston and the bottom. ofthe' cylinder 82 is vented.

While the form of embodiment of the present invention as herein disclosed, constitutes a preferred form, it is to be understood that other forms might be adoptech all coming within the scope of the claims which follow.

What is claimed'is as follows:

1. Armature assembling apparatus con1- prising in combination cup-shaped mom her hav ng a cylindrical recess for receiving ltlti a. slotted armature core, each slot having non-conducting lining means for receiving the branches of hair-pinconductors the ends of which have been introducet into the slots, the end wall of the member having apertures for receiving the con-duct branches and means or preventing movement of the slot lining 1 cans; and means for moving the conductors endwise relative to the core.

Appa atus according to claim 1, and provided with means pivotally supporting the cup-shaped member so that the armature may moved into and out of alinement with the conductor moving means.

3. Armature assembling apparatus comprising, in combination, a member for supporting end of a slotted armature core assembled upon a shaft, each core slot having non-conducting lining means for receiving the branches of hair-pin conductors the ends of which have een introduced into the slots the core-supporting wall of said member having an aperture for receiving the shaft, apertures for receiving the conductor branches and means for preventing movement of the slot lining means; and means for moving the conductors endwise relative to the core.

1-. Apparatus according to claim 3, in

which the conductor moving means includes an apertured disk adapted to be placed around the shaft and against the yoke portions of the hair-pin conductors, and a movable rod engageable with the disk and provided with a recess for receiving the shaft.

5.1rrmature assembling apparatus comprising, in combination, a cup-shaped memg cylindrical recess for receiving slotted armature core, each slot having non-conducting lining means for receiving the branches of hair-pin conductors the ends of which have been introduced into the slots, the cylindrical side wall being provided with ribs adapted to enter the slots to retain the insulation means, the end wall having apertures for receiving the conductor branches and means for preventing movement of the slot lining means; and means for moving the conductors endwise relative to the core- 6. Apparatus according to claim 5, in which means are provided for dislodging the core from the cup-shaped member.

7. Armature assembling apparatus comprising, in combination a cup-shaped member having a cylindrical recess for receiving an open slotted armature core assembled with a shaft each slot having non-conducting lining means for receiving the branches of hairpin conductors the ends of which have been introduced into the slots, the cylindrical well bein provided with ribs adapted to enter the slots to retain the insulation the end wall hav apertures for the conductor shaft on the branches, and means for preventing movement of the slot lining means; and means movable axially of the shaft for engaging the conductor yoke portions in order to move the conductors relative to the core.

8. Apparatus according to claim 7, in which the cupmember is pivotally mounted so that the core may e moved into and out of alinement with the conductor moving means.

9. Apparatus according to claim 7, in which means engageable with the shaft is provided for moving the core in order to dislodge the core from the cup-shaped member.

10. Apparatus according to claim 7, in which the cup-member is pivotally mounted so that the core may be moved into and out of alinement with the conductor moving means and in which a movable rod is provided for engaging an end of the shaft in order to dislodge the core from the cupmember, the shaft being moved into alinement with said rod when the core is moved out of alineinent with the conductor moving means.

11. Armature assembling apparatus comprising in combination, a base, a fluid-pressure cylinder supported above the base; a piston within the cylinder; rod attached to the cylinder and vertically movable between the base and cylinder; a cup-shaped member located below the rod and pivotally supported by the base and rotatable about an axis at right angles to and intersecting the of the rod and the axis of said member, and adapted to receive a slotted armature core assembled upon a shaft, each slot of the core containing non-conducting lining means adapted to receive the branches of hair-pin conductors which have been inserted in the slots, the cup-shaped member having an end wall supporting the core-and provided with apertures for receiving the shaft conductor branches, and having means for pre-. venting movement of the lining; means engageable with the conductor yolres and adapted to receive pressure from the rod in order to move the conductors relative to the core.

12. Apparatus according to claim 11, and provided with a rod located below the base and oblique to the firs -mentioned rod, and movable through the base in engagement with the lower end of the shaft when the cup member is tilted out of aline sent with the first-mentioned rod.

13. A cupshaped member for supporting aslotted armature core provided with slot lining members adapted to receive conductor bars, comprising in combination, inner, outer and intermediate, closely-fitting, cylindrical members; the outer member being tubular and provided internally with equinngw lZLI'lY-SPii-Gfid, longitudinally extending ribs r 158E weedefining grooves for receiving the outer conductor bar ends; the inner member being cylindrical end provided externally with ribs disposed and spaced similarly to and located in radial alinement with the ribs of the outer member and for the purpose of defining); grooves for receiving the inner c011- duetor bar ends; and the intermediate member being a thin-Walled tube spacing the radially alined ribs of the innerend outer members we separating the conductor receiving grooves provided between the ribs of said inner and outer member's.

In testimony whereof 1 hereto efi'ix my signature.

LORA E. P001119). 

